Mounting seat, end plate assembly, battery and electric device

The invention discloses a mounting seat, an end plate assembly, a battery and an electric device. The mounting seat comprises an output pole connecting piece and a plug connector. Wherein the output electrode connecting piece is used for being connected with an output electrode of a battery; the plug connector is connected with the output electrode connecting piece, at least part of the plug connector is made of a deformation material, the plug connector part containing the deformation material forms at least one part of plug-in surface, and at least one part of plug-in surface is used for being in interference plug-in fit with an end plate of the battery. At least a part of the plug connector is made of a deformation material, and when the plug connector is in interference plug connection with the end plate, the plug connector can generate plastic deformation or elastic deformation, so that the plug connector can be fixed on the end plate more stably, the shaking probability of the mounting seat when the bat